> If you use "tcpdump -x", you can get a hex dump of already existing > packets. That might help. No. We want to craft packets for testing. > https://sourceforge.net/tracker/?func=detail&aid=3486236&group_id=169098&atid=849056 Until then, probably the attached perl script helps. It reads a format similar to ipftest's "text" format and outputs ipftest's "hex" format. I'm always astonished how simple tasks like this are given perl's wealth of modules.